src/pthread_support.c

   1 /*
   2  * Copyright (c) 2012 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include "internal.h"
  25 #include <dlfcn.h>
  26 #include <_simple.h>
  27 #include <CrashReporterClient.h>
  28
  29 #define __SIGABRT 6
  30
  31 /* We should move abort() into Libsyscall, if possible. */
  32 int __getpid(void);
  33
  34 PTHREAD_NORETURN int
  35 __kill(int pid, int signum, int posix);
  36
  37 void
  38 __pthread_abort(void)
  39 {
  40         PTHREAD_NORETURN void (*_libc_abort)(void);
  41         _libc_abort = dlsym(RTLD_DEFAULT, "abort");
  42
  43         if (_libc_abort) {
  44                 _libc_abort();
  45         } else {
  46                 __kill(__getpid(), __SIGABRT, 0);
  47         }
  48 }
  49
  50 void
  51 __pthread_abort_reason(const char *fmt, ...)
  52 {
  53 #if !TARGET_OS_EMBEDDED
  54         va_list ap;
  55         const char *str = fmt;
  56         _SIMPLE_STRING s = _simple_salloc();
  57         va_start(ap, fmt);
  58         if (_simple_vsprintf(s, fmt, ap) == 0) {
  59                 str = _simple_string(s);
  60         }
  61         CRSetCrashLogMessage(str);
  62         va_end(ap);
  63 #endif
  64         __pthread_abort();
  65 }